Originally Posted by Braced

I downloaded and made my own disc's for this upgrade. It installed in minutes in my car. Then I went to install it in a friends car and it locked up! My worst fears were realized. The entire nav unit went dead. Nothing worked not even the acc button on the starter switch. I thought I was going to have to buy a new nav unit for my buddy. We opened the door and closed it and waited until the car powered down on it's own. The nav unit was giving us a message saying the disc was bad and to insert the proper disc. This was the same disc that installed in minutes in my C6. After the car powered down the disc finally ejected. But the system was still dead. I was ready to take his car to the dealer and let them fix it. But he insisted we try one more time. We inserted the disc and this time it worked. A big sigh of relief from me!

I threw the disc's in the garbage! Never again will I take that chance with someone else's car. This is a fix that when taken to a dealer and complaining about static in the FM will be handled by the dealer. Let them screw it up! It should take them less than 30 minutes to preform the proper install. Why take the chance? It's 99% assured they will do it for you and assume the risk.

You can do it yourself and most likely be successful, but what if this happens to you? You're out a $1200 nav unit. Let the dealer do it, or at the very least, buy the original disc's from GM.

Sorry, don't mean to scare anyone. But it sure scared me when my buddies nav unit froze up. That's a feeling you don't want!